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4:01 PM
hi all
 
hi part of all
 
hi some
 
d'boop
Cody Wells, 32, Male, Neofuven
Base friendship value: 5

Nicholas Harrison, 41, Male, Dehobe
Relationship: Cody Wells & Nicholas Harrison = friends 7
Base friendship value: 7

Addie Lewis, 50, Female, Kamopjuz
Relationship: Cody Wells & Addie Lewis = comrades 6
Base friendship value: 6.5
Relationship: Nicholas Harrison & Addie Lewis = friends 7
Base friendship value: 6.75

Jeanette White, 57, Female, Kamopjuz
Relationship: Cody Wells & Jeanette White = comrades 6
Base friendship value: 6.375
Relationship: Nicholas Harrison & Jeanette White = friends 7
My algorithms quite work.
 
(All of the people info is randomly generated and fictional.
Any coincidence with real information is absolutely unintentional.)
 
4:07 PM
Oh wow, 10Gbps.io now offers dedicates servers with 40 or 100 Gbps uplinks.
 
@zyabin101 Friendships get more and more complicated as more people are created.
 
Not with the division into small samples.
 
Is anyone else having difficulty viewing github usercontent?
 
Not me
 
4:10 PM
Nope
 
Nope
 
It works for small files but if I try to download a large file (such as this) it crashes my browser
 
..... that also crashed mine
I think it's just too big
 
4:14 PM
how do you measure the numerical stability of some code? This is for computing the permanent of a matrix
I suspect the code is not giving the wrong answer due to numerical errors
 
Do you just want to know how the output varies when the smallest possible perturbation is made?
Or how the output varies for the same input in different environments?
 
@trichoplax My browser opened it happily. (It's Firefox. I presume you're using Chrome.)
 
@wizzwizz4 Samples contain a human-manageable amount of people (I use 5).
 
@trichoplax the former
 
0
Q: Calculate Power Series Coefficients

flawrGiven a polynomial p(x) with integral coefficients and a constant term of p(0)=1 or -1, and a nonnegative integer N, return the N-th coefficient of the power seris (sometimes called "Taylor series") of f(x)= 1/p(x) developed at x0 = 0, i.e., the coefficient of the monomial of degree N. The given...

 
4:22 PM
well really I want to know if it is giving the wrong answer
 
@zyabin101 Done. Please begin the pulling of the branch.
Pull it to the tree trunk and staple it there.
DISCLAIMER: Do not do this to actual trees!
 
@wizzwizz4 Merged!
 
Yay! :-)
... That took two hours to write?! :-/
 
In reward for your contribution, I award you write rights on my repo!
Check your email.
 
@wizzwizz4 I'm on Firefox too, but only 32 bit. I managed to get the huge text file by just downloading the whole repository, so github doesn't try to display it in a browser tab
 
4:29 PM
@wizzwizz4 When putting data in a separate branch for pull requests, use your GitHub username in the name of the branch, so that I know who is adding the branch.
 
@Lembik Do you have the option of running it at different levels of precision (like using single floats then double floats) to see if there is a significant difference?
 
For example, wizzwizz4/issue-#10295.
 
@zyabin101 Ok. I just left the branch with its default name.
 
(The issue-#10295 is an example.)
 
But in future it will let me choose one, unless I create a new fork (which I won't!!!)
/me creates a new fork despite vowing not to... :-/ That won't happen.
 
4:32 PM
Also, you'll also have to review pull requests thru GitHub's PR review system.
 
@zyabin101 There's a PR system? Where is it?
Or is Bronze required?
 
@wizzwizz4 ^
 
@trichoplax the problem is that I would need something better than double
 
@wizzwizz4 In paid plans, there's only unlimited private repositories.
 
@trichoplax I am not sure how to do that easily in C
 
4:35 PM
@Lembik Is it someone else's code that just takes a number as input? Is it possible to see if it is overloaded for different types?
 
it's my code
 
@trichoplax I don't think it's possible to overload in C.
 
I must be mixing it up with C++
You still have single and double in C though?
 
@trichoplax You could also use curl, or spoof the mimetype.
@trichoplax It's float and double, but yes.
 
Thanks :)
 
4:43 PM
@wizzwizz4 Did you check your email?
@KritixiLithos There's the new explanation for stiristics lesson 2 :D
 
The Showcase of Languages has been unlocked.
7
 
@Dennis Thanks.
In name of all of Programming Puzzles & Code Golf Stack Exchange, I want to say thanks for unlocking the new showcase.
 
@Dennis nice! if you can, Pushy needs a quick pull to TIO :)
where's the TIO glitter? I seem to have lost the link
 
4:54 PM
thanks
i was doing glitter .io, not .im :P
 
There
Finished my own MC circle generator
(I don't trust the online ones, their sources are obfuscated)
 
@FlipTack Also, s/glitter/gitter/
@LegionMammal978 Where is it? :3
 
that's my phone autocorrect ;(
 
@zyabin101 In a Mathematica notebook
 
@FlipTack Then add "gitter" to the custom dictionary of the phone.
@LegionMammal978 Where? :3
 
4:55 PM
@FlipTack Nobody seems to be using gitter. There's also talk.tryitonline.net.
 
@zyabin101 In a Mathematica session
 
Where? :3
 
@zyabin101 In N sticks of RAM
 
Where? :/
 
@zyabin101 In the case to the left of me
 
4:57 PM
:(
 
Do you even have Mathematica?
 
Nope.
 
@Dennis : Maxima in TIO (also wxMaxima, it is Maxima with a GUI, and as far as I know it already works like a server/client)
 
> maxima-clisp-sbcl-5.38.1.exe (109.0 MB)
Waaaaat?
 
4:59 PM
@wizzwizz4 Check your email.
 
@Dennis I have posted a message in gitter but to no avail... I don't use it often, there is talk.tryitonline.net which is a lot better (and you get instantly pinged, instead of e-mail notifications). Maybe I'll use it if chat.stackexchange.com is down.
 
@zyabin101 what's wrong with that?
 
@EriktheOutgolfer I see only one message of yours on Gitter, and I have responded to it. However, I just saw a message from somebody else that I didn't get a notification for.
 
@Dennis Now do the snippet lengths still have to depend on the votecount of the post?
 
No.
@flawr That the second request in 24 hours. Coincidence?
 
5:11 PM
You weren't notified because you weren't pinged.
 
I was.
Pinged, not notified.
 
@wizzwizz4 -utTqPWEzxJe7XiSYzA6-A
 
Do the answers have to be CW?
 
They're automatically made community wiki.
 
Old answers are still normal
 
5:14 PM
They are? Crap.
 
It's not quite clear in the post that it's not based on votes anymore - maybe adding "and so snippet length does not depend on votecount" after "This is no longer a popularity contest" might be beneficial (especially for those who are used to the question before the change)
 
@Dennis Yep they are. I think that new answers are CW'd though.
 
Well, they're all CW now.
@FlipTack Pulled Pushy.
 
thank you!
 
5:16 PM
@Dennis This is a kinda weird sentence
 
The first notebook I create in wxMaxima is a "Hello, World!", a textual version.
I didn't make a programmatic version yet.
@FlipTack What is Pushy?
@Dennis XD
 
@zyabin101 it's a really crappy language I made
 
Link? :3
 
I'm not sure you'll want to see it :P
the interpreter's spaghetti and there's only 1 page of docs
 
@Dennis Hm, perhaps I've seen a Maxima answer somewhere. Anyway I just submitted my first Maple answer and was curious if there was any CAS on TIO
 
5:24 PM
@FlipTack How do I enter input to Pushy on TIO?
 
Oh, it has to be in the arguments section
 
@FlipTack ^ here's your "pick up input and return the changed input" base.
 
yep
although _ works just as well :)
 
Because there don't seem to be any variables, input and the wannabe output is to be put on the IN stack.
 
i might add function support at some point...
 
5:29 PM
Achievement unlocked: 500 bronze badges. (You have no life.)
12
 
@zyabin101 I finally (semi-)brute-forced the URL (based on my hazy memory from last time I got invited to a GitHub repo).
 
@Dennis I'm only gonna be impressed when you get 500 gold badges.
 
@Dennis Only 12 to go until a nice round number!
6
 
@wizzwizz4 Click it.
 
@zyabin101 It's not working...
There's a button, but
Oh. :-)
 
5:32 PM
You now have push and review permissions to YADFPL, and your reviews will now affect the destiny of pull requests.
And, you now have a work to do :D
 
@Doorknob Hah, that just reminded my of this trainwreck: news.ycombinator.com/item?id=13295642
 
5:49 PM
chat mini math challenge: write a closed-form real function that has an infinite number of zeroes between 0 and 1 inclusive, and none elsewhere
 
@orlp Infinite number of zeros?
What does that mean?
 
@orlp
 
@wizzwizz4 that the graph crosses the y axis an infinite number of times
 
So, integer part of x?
 
while 1: print 0
Oh that's what you mean
 
5:52 PM
no, a closed form real function
no while loops
e.g. f(x) = x^2
 
or f(x) = sin(x)
maybe I should say expression
 
x = 0
 
@PythonMaster None elsewhere.
 
hrm
yeah
 
5:53 PM
A straight line that goes though the entire y-axis!
 
but that does indeed not suffice 'none elsewhere'
 
@wizzwizz4 I don't quite understand what you are sying
 
@PythonMaster this also has zeroes outside of [0, 1]
e.g. f(2) = 0
but that's not allowed
 
@orlp No... That's y = 0, which I read it as too.
 
5:54 PM
also, I assume you meant f(x) = 0
 
@orlp I did try using a vertical line after all ;-p
 
@orlp Do you mean "crosses the x axis"?
 
@PythonMaster well if you truly meant the line x = 0, then it only has a single zero
at x= 0
 
If so: f(x) = round(abs(x+0.5))
 
I don't want round
I guess I underspecified
 
5:56 PM
-1 for unspecification
 
chat mini math challenge: write a closed-form continuous real function that has an infinite number of zeroes between 0 and 1 inclusive, and none elsewhere
bonus points it it actually crosses the y axis an infinite amount of times in [0, 1]
rather than just being flat
 
I've heard this puzzle before, don't remember the answer.
 
@orlp How? I don't understand that.
If it crosses an infinite number of times, there is no value of x where it is not crossing. Therefore it is flat.
 
@wizzwizz4 this is actually incorrect because infinity is a much more finicky concept than you might expect.
 
@PhiNotPi Is it inf + 0i or is it inf [+/-] inf i or is it other?
 
6:01 PM
Not sure what you're asking? I was referring to countable/uncountable infinities.
 
@PhiNotPi Oh. So it's an uncountable infinity... Could you give an example closed-form continuous function that crosses y=0 an infinite number of times in a finite range of x?
 
sin(1/x)
(close but not exactly a solution to the original puzzle, mainly because it's undefined at x=0, it works when you consider the range (0,1) though)
 
Thanks. I sort of understand now...
 
6:21 PM
0
A: Sandbox for Proposed Challenges

FlipTack0xUsernames Preface There's so many people using a messaging service that they're running out of space to store all the usernames! To fix this, they are going to start storing usernames as hexadecimal, where possible. If a username consists of only the characters 0123456789ABCDEF (case ins...

 
@NewSandboxedPosts is awake today...
that was fast
 
6:33 PM
 
?
 
First time i saw Google caring capitals
 
oh
 
Google is amazing
 
@betseg "capital of italy" -> Rome
 
6:35 PM
@flawr s/s$/ letters/
 
one of my friends was at this bar quiz, and they had a technology section, where they asked what Mb meant. Naturally, he put "Megabit" - but the answer was actually megabyte .-.
 
Wat
Stupid quiz
 
I just realized that I probably have a mathematica license as I have a raspberry pi
sadly i have no idea where it is
 
Brb buying rasppi
 
aren't they really cheap now?
 
6:39 PM
Dunno, i just want a mathematica license
 
Nice
When I got a raspi I didn't get the full version of Mathematica though
 
Aww
 
which model do you have @KritixiLithos
I think I have a B or B+
I need to dig it up
 
It is a raspberry pi 2, that's all I know since it technically isn't mine (it's the school's but I did stuff on it in school)
I learnt the basics on navigating the terminal in the raspi (and some Python). It was a good experience
 
I got mine mainly for experimenting with GPIO pins
 
6:45 PM
any haskellians here?
haskellados?
haskelleants?
 
No
 
))))))yes(((([(
 
I love that [
 
:]
 
6:47 PM
@EriktheOutgolfer Ninja'd
 
Nah, my internet is just slow.
 
My internet is upgraded to VDSL2, 3 times faster now
 
In Greece, VDSL is something you want to 100% avoid :(
 
why?
 
6:50 PM
@PhiNotPi this was my solution: wolframalpha.com/input/…
@wizzwizz4 even for countable infinities
"If it crosses an infinite number of times, there is no value of x where it is not crossing. Therefore it is flat."
 
@EriktheOutgolfer why
 
"If there are an infinite number of even integers then there are no integers where it's not even. Therefore there are no odd numbers."
see how this makes no sense?
 
> Plot[8 (-1/2 + x)^2 + Sin[(-1/2 + x)^(-2)], {x, -0.27, 1.7}]
 
@betseg It doesn't really work, there are numerous problems.
 
Why is the artifact there?
 
6:51 PM
what?
@zyabin101 what artifact?
 
Somewhere between 0 and 1
 
@zyabin101 yes but what are you talking about
 
@orlp I have another solution: sin(tan(x))*sin(x)
 
crosses an infinite number of times between 0 and 1, and nowhere else
@flawr that also crosses the y axis in other places
 
@flawr The query plots sin(*tan*(x))*sin(x)
 
6:54 PM
ooh, sorry I did not read that part=)
 
tan(1.570795451256221449556761743716181321934355001187882143925) in base 36 valiantly fails.
 
Context for the math?
 
atan(ohai in base 36)
 
@El'endiaStarman Base 36 is using the symbol set 0123456789abcdefghijklmnopqrstuvwxyz.
 
Outputting ohah.(z), instead of ohai as I wanted. :/
 
7:19 PM
You can just take tan^-1 of the number you want, round it, then post on reddit.
 
Whoops, I meant what flawr and orlp were talking about. But that's cool too.
 
@wizzwizz4 That'll be closed as dupe of this post, UNLESS it's really cool.
> a: 10 | b: 11 | c: 12 | d: 13 | e: 14 | f: 15 | g: 16 | h: 17 | i: 18 | j: 19 | k: 20 | l: 21 | m: 22 | n: 23 | o: 24 | p: 25 | q: 26 | r: 27 | s: 28 | t: 29 | u: 30 | v: 31 | w: 32 | x: 33 | y: 34 | z: 35
Can you not put the entire digit sheet in, WolframAlpha?
 
@El'endiaStarman orlp posted a challenge a few days ago
this one:
 
No can see, sir!
 
Get some more rep :)
 
7:28 PM
^
 
@flawr What's up with the graph, then?
 
Oh, that has nothing to do with that
sorry for the confusion=)
 
7:48 PM
I think could use a new tag description, including a standardized definition on what input and output forms are allowed.
 
8829785798520333168696 in base 30
 
@betseg What?
 
8829785798520333168696 in base 30
 
IDONTNEEDBAE8MI
 
Wow
Wait, what does BAE8MI mean?
 
7:54 PM
WolframAlpha says idontneedbase36 for that number
 
I though that number was in base 30 so I used Python's int()
And got 86499079075633223654516126381676
 
@flawr you just made my year :)
 
Btw, i generated that number by 30^14*18+[...]+30^0*6
 
7:59 PM
Yay, new Sherlock episode in 30 min
 
Nay, I'll sleep in 30 min
I'll just torrent the episode using school's wifi :D
 
@minxoma is as far as the autocomplete function gets in your username. Please change that T to something that SE recognises. (It's not a bug, it's a feature!)
 
@trichoplax :D not my original work=)
 
@wizzwizz4 Why would I change the last letter? Search and autocomplete both recognize all previous letters as "minxoma", I don't see such a user here, so that would be useless. In summary: No.
 
@betseg Unless they disable the Wi-Fi during nighttime...
Which can happen for them anytime.
 
8:03 PM
@zyabin101 I'm at home, I'll torrent tomorrow
 
Anonymous
@Sherlock9 I'm not sure what you mean
 
8:19 PM
@mınxomaτ yay new Sherlock in 10 minutes
 
I'm stuck with FilmOn. iPlayer is blocked for basically all VPNs :(
 
RIP :(
 
Well it's OK quality. I watched 2016 wipe like this.
 
@mınxomaτ "OK" quality?! It even has quality=low in the URL! :-)
 
Still better than SD TV.
 
8:27 PM
-.(o.o).- I guess...
 
Good night!
 
Good night!
 
Oh this comedy is physically painful to watch.
It's over. Thank god.
 
Oh btw before I go to sleep
2007 was a decade ago
5
 
... Stop making us feel old...
Wow. It feels like only 5 years ago.
 
8:49 PM
@Downgoat your proposal to append goat to everyone's name is interesting, but how would it work for, for example, me or Dennis?
Hey everyone, so this meta post has nine upvotes but no comments or answers. Can I interpret that as consensus, or do I keep waiting?
 
I'd wait for an answer
 
9:04 PM
0
A: Sandbox for Proposed Challenges

LynnWhich way will the see-saw turn? code-golf Given an ASCII string of spaces, os, and Os, balance them on a see-saw, and determine which way it tilts. For example, ooO O represents the situation: ooO O ===== ^ A lowercase o has a mass of 1kg, and a lowercase O has a mass of 2kg. The torque ...

 
@Pavel Upvotes on meta questions mean the topic is worth discussing. There cannot be a consensus without an answer.
 
Anonymous
9:17 PM
@Dennis Exactly. I think the discussion is worth having, but I haven't decided one way or the other on the topic yet, so I haven't written an answer.
 
Oops! There was a problem updating your profile:
    unusual error updating your profile -- please try again!
10/10 very descriptive
 
It'd be nice if everything had errors that at least gave you an idea as to what the issue is. It'd be a different world.
 
Well, in this case it was just a bad internet connection.
 
That's what I assume when things don't work :p
 
9:36 PM
@Dennis I'm trying to wrap my head around this but I'm not 100% certain
if d is a divisor of n
and l is the list of all divisors of n
then is the list of all divisors of n/d {e/d if e%d == 0 else e for e in l}?
 
9:49 PM
@Dennis what did you try to do?
 
10:33 PM
Does anyone know an online interpreter for Octave with graphical output?
 
@flawr I don't sry
I love that as a kid I was fascinated by the idea of compression of mp3
that it somehow 'knows' what sounds we can hear and not
and removes them
but now that I'm older and know about fourier analysis it suddenly seems a lot less mystical :D
 
Same with jpeg=)
I was amazed how you could "compress" jpeg files by rotating them multiple times in a row=)
 
haha
the main thing that demystified compression for me
is arithmetic coding
with it you can compress anything as optimal as you can detect patterns
how well your model fits is your compression ratio
 
I think for me the key moment was when playing arount with the DFT of images, and zeroing many coefficients, then iDFTing them back.
I was amazed how much of the image was left when using only a tiny little bit of the data
 
10:49 PM
@flawr you can do even better if you first decorrelate the image
into a brightness, and two color dimensions
then DFT
you throw away some bright coefficients
but you can throw away almost all color
@flawr have you ever seen colorizebot?
basically as long as you have accurate brightness (black/white) picture, the colors will fall in place
 
@orlp no?
@orlp I've only worked with B/W images back then.
 
@orlp So just using ycbcr instead of rgb?
 
@flawr or ycocg, or L*A*B*, or...
the fact that I know those things reminds me once again that I often go way too deep in random things
 
@orlp this is amazing,now I remeber that I've seen it before!
 
10:54 PM
@flawr with neural networks you can color black/white pics
 
11:06 PM
hi!
there should be like a captcha thing for the first time people post on a site, except instead of typing in some random thing, they have to type from a picture what the site is about
7
 
anagolf's CAPTCHA works like that
 
@DestructibleWatermelon haha, good idea!
 
"what is your favourite sport (hint: it starts with 'g')"
@Pavel if a meta question has a lot of upvotes, it means other people are interested in the answer too; it doesn't particularly indicate what the answer is
 
@ais523 gymnastics?
 
sometimes I post a meta post and the post itself gets upvoted and all the answers get downvoted, which means that people care abou the answer but disagree as to what it is
@flawr well the intended answer is "golf"
 
11:13 PM
@ais523 :D
 
1
Q: Help me recognise my monster

ais523Background The computer game NetHack dates from 1987, before the use of graphics in computer games was widely established. There are lots of monsters in the game, and potentially a lot need to fit on screen at once, so monsters are drawn in a very minimal way: a monster is simply drawn as an ASC...

0
Q: Generate an ASCII Padovan Spiral

Andrew LiThis is the ASCII version of this challenge. The initial post was separated per request by Martin Ender Introduction Similar to the Fibonacci Sequence, the Padovan Sequence (OEIS A000931) is a sequence of numbers that is produced by adding previous terms in the sequence. The initial values are ...

 
maybe even if it was just "this is site is not stackoverflow, ask your programming questions there"
 
Can anyone see where the word "print" appears in this page? Chrome says 1 occurrence found but I don't see it :/
 
@orlp surprisingly I think it's just me so far
 
@HelkaHomba strange, same on firefox
 
11:18 PM
codegolf.stackexchange.com/questions/105213/grow-till-its-2017 <- actually, never mind, I think it's just because people haven't been tagging them
 
@HelkaHomba Electronics tab
 
11:36 PM
I just passed 4,000 rep so I no longer need approval to edit tag wikis. Is there some other way I can gain rep in increments of 2?
 
@WheatWizard accept an answer on a previous challenge
 
@Adnan Thanks
 
Have someone remove a downvote on one of your posts ;)
 
@MartinEnder I am not sure that I have received one yet but thanks.
 
11:48 PM
1
Q: Generate an ASCII Padovan Spiral

Andrew LiThis is the ASCII version of this challenge. The initial post was separated per request by Martin Ender Introduction Similar to the Fibonacci Sequence, the Padovan Sequence (OEIS A000931) is a sequence of numbers that is produced by adding previous terms in the sequence. The initial values are ...

gonna try this in Turtlèd I think
 
> website: "type sudo emacs /private/etc/hosts"
 
@EᴀsᴛᴇʀʟʏIʀᴋ Thats... odd
 
hmmm how to program this
 

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